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Starlink-L20 - L-3 Days

Falcon 9

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Valid Period

Mar 9, 2021 01:58 - 03:59 UTC (20:58 - 22:59 ET)

Issued

Sat Mar 6, 2021 at 14:00 UTC (09:00 ET)

Forecast Discussion

Space Launch Delta 45

A low pressure area currently in the eastern Gulf of Mexico will transit southern Florida today, bringing widespread clouds, showers and gusty winds. The system will continue to move east into the Atlantic on Sunday, taking much of the unsettled weather with it, as high pressure builds into Florida. The pressure gradient between these two systems will keep gusty northerly winds over the Space Coast throughout the day. On Monday, winds will diminish and become more northeasterly as the high pressure area moves off the Mid-Atlantic coast. Expect much the same conditions on Tuesday as the winds become easterly, increasing cloud cover slightly with the onshore flow. The primary weather concerns for an attempt Tuesday evening are liftoff winds and the Cumulus Cloud Rule. On Wednesday, conditions remain much the same as the high pressure area continues to dominate the area with continued onshore flow. The primary weather concerns remain liftoff winds and the Cumulus Cloud Rule.

Primary Launch Date

Launch Day

Primary Window

90%
PGO

Primary Concerns

  • Liftoff Winds
  • Cumulus Cloud Rule

Additional Risk Criteria

CriteriaRisk Level
Upper-Level Wind ShearLow
Booster Recovery WeatherLow
Solar ActivityLow

Backup Opportunities

24-Hour Delay

Backup Window

80%
PGO

Primary Concerns

  • Liftoff Winds
  • Cumulus Cloud Rule

Additional Risk Criteria

CriteriaRisk Level
Upper-Level Wind ShearLow
Booster Recovery WeatherLow
Solar ActivityLow